The valid way to issue a direct CQL query that includes a solr_query is to retrieve only the
user-defined vertex id fields in the select statement. Moving from DSE 5.0 to 6.0 may cause
issues with previously created queries.

Because of these complexities, DataStax currently does not recommend querying the underling
Graph generated CQL tables or SOLR Indexes. Such queries will be required to rewrite their
queries in a future DSE Graph release.

In DSE 50. and DSE 5.1, when someone issues a CQL statement using the SOLR API in the WHERE
clause against a graph table that contains a DSE Search index (assuming search index was created
by DSE Graph)